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Property and Equipment and Intangible Assets - Schedule of Components of Property, Equipment and Intangible Assets (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Gross property, equipment and intangible assets | $ 8,452,292 | $ 4,360,818
Less: Accumulated depreciation and amortization | (3,623,745) | (2,181,488)
Property, equipment and intangible assets, net | $ 4,828,547 | 2,179,330
Website [Member] |  |
Useful life (Years) | 7 years |
Gross property, equipment and intangible assets | $ 121,787 | 121,787
Mining Equipment [Member] |  |
Useful life (Years) | 2 years |
Gross property, equipment and intangible assets | $ 7,120,505 | 3,029,031
Mining Patent [Member] |  |
Useful life (Years) | 17 years |
Gross property, equipment and intangible assets | $ 1,210,000 | $ 1,210,000

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- Definition Accumulated depreciation and amortization. + References No definition available. + Details
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Namespace Prefix: | MARA_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Gross property, equipment and intangible assets. + References No definition available. + Details
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Namespace Prefix: | MARA_
Data Type: | xbrli:monetaryItemType
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- Definition Property, equipment and intangible assets, net. + References No definition available. + Details
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Namespace Prefix: | MARA_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Property, equipment and intangible assets useful life. + References No definition available. + Details
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Namespace Prefix: | MARA_
Data Type: | xbrli:durationItemType
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |